发明申请
- 专利标题： Steel for surface-treated mechanical parts with high characteristics, and mechanical parts in this steel and manufacturing method thereof
- 专利标题（中）： 具有高特性的表面处理机械部件用钢，该钢中的机械部件及其制造方法
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申请号： US14732974申请日： 2015-06-08
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公开(公告)号： US20170044635A1公开(公告)日： 2017-02-16
- 发明人: Thomas Sourmail , Véronique Smanio
- 申请人： ASCO INDUSTRIES
- 优先权： FR1455467 20140616
- 主分类号： C21D9/30
- IPC分类号： C21D9/30 ; C21D7/13 ; C21D6/00 ; C21D1/42 ; C21D1/06 ; C22C38/04 ; C22C38/50 ; C22C38/46 ; C22C38/44 ; C22C38/48 ; C22C38/02 ; C21D8/00 ; C22C38/54
摘要：
Steel for which the composition is, in weight percentages: 0.35%≦C≦0.50%; 0.30%≦Mn≦1.50%; trace amounts ≦Cr≦1.50%; 0.05%≦Mo≦0.50%; 0.15≦Si≦1.20%; trace amounts ≦Ni≦1.0%; trace amounts ≦Cu≦1.0%; trace amounts ≦V≦0.35%; trace amounts ≦Al≦0.10%; trace amounts ≦B≦0.005%; trace amounts ≦Ti≦0.10%; trace amounts ≦Nb≦0.10%; trace amounts ≦S≦0.15%; trace amounts ≦Ca≦0.010%; trace amounts ≦Te≦0.030%; trace amounts ≦Se≦0.050%; trace amounts ≦Bi≦0.050%; trace amounts ≦Pb≦0.100%; trace amounts ≦N≦0.020%; the remainder being iron and impurities resulting from the elaboration, and the C, Mn and Cr contents being such that 830-270 C %-90 Mn %-70 Cr %)≦620.
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